The hex color #3a56c4 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#C5A93B. The grayscale version is
#717171. A 20% lighter version of the original color is
#6D89F7, and Hex
#072391 is the 20% darker color. If the color is saturated by 10%, you get
#3453CC. If the color is desaturated by 10%, the color
#4059BC is obtained.